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You have reached the CCN Inventory Tool Detailed Insights Report.

Great News! This geography has available data.

Potential data availability within the Inventory Tool ranges from Tier I, Tier II, or Tier III Carbon stock estimates.

  • Tier I: Global sediment carbon stock estimates.

  • Tier II: Country- or territory-level sediment carbon stock estimates.

  • Tier III: Modeled country- or territory-level sediment carbon stock estimates.

This is a downloadable document which includes specific insights and more detailed analysis for a selected territory or country, including carbon stocks, emissions factors, and ecosystem wetland area for mangrove, marsh, and seagrass habitats. This report details information for the selected geography, Nigeria.

Explore the rest of the inventory dashboard for more exciting visualizations, map features, and data.

If you have any questions or data you would like to add to the Coastal Carbon Network, please reach out to us at .

Map: Nigeria

Figure 1. Interactive map of selected geography. If available for selected geography, vegetation and sediment samples included in the Coastal Carbon Atlas are displayed as marker points.

Stocks Table

Featured in the inventory tool dashboard, below is a table of any available sediment carbon stock estimates for the selected geography, Nigeria, for mangrove, tidal marsh, and seagrass habitat.

Continent Region Territory Habitat Area (hectares) Mean Stock (Mg/ha) Reporting Tier
Africa Sub-Saharan Africa Nigeria mangrove 696000 386 Tier I
Africa Sub-Saharan Africa Nigeria marsh 2045 255 Tier I
Africa Sub-Saharan Africa Nigeria seagrass 887700 108 Tier I

Total Carbon Stock Estimates

Total Carbon stock estimates were calculated for each geography in total, and for mangrove, tidal marsh, and seagrass habitats, if applicable. At this time total Carbon stock estimates for each country do not include seagrass estimates due to the lack of a global, transparent, and independently assessed seagrass habitat map. However, best available areas and stocks for Nigeria are explored in the following ‘Wetland Areas and Activities’ section.

Country Level Total Stock Estimates

We estimate that Nigeria contains approximately 269200000 megagrams per hectare (Mg/ha) soil carbon to a depth of 1 meter.

Total Territory-Level Stocks
Territory Country Habitat Total Stock Upper CI Lower CI Standard Error
Nigeria Nigeria mangrove 268700000 313200000 224100000 23230000
Nigeria Nigeria marsh 521400 662100 380600 73310
Nigeria Nigeria seagrass 95870000 NA NA NA

Mangrove Estimates

This total estimate includes country-level mangrove carbon stock estimates, with a mean estimate of 268654000 megagrams per hectare (Mg/ha) soil carbon in mangrove habitats.

Tidal Marsh Estimates

This total estimate includes country-level mangrove carbon stock estimates, with a mean estimate of 521356 megagrams per hectare (Mg/ha) soil carbon in tidal marsh habitats.

Seagrass Estimates

This total estimate includes country-level mangrove carbon stock estimates, with a mean estimate of 95900000 megagrams per hectare (Mg/ha) soil carbon in seagrass habitats.

Wetland Areas and Activities

Mangrove Area

We estimate mangrove area in Nigeria to be 611000 to 807000 hectares with a mean estimate of 696000 hectares according to Global Mangrove Watch, Bunting et al 2018.

Tidal Marsh Area

We estimate tidal marsh area in Nigeria to be 1240 to 2310 hectares with a mean estimate of 2040 hectares according to Global Mangrove Watch, Bunting et al 2018.

Seagrass Area

We estimate seagrass area in Nigeria to have a mean estimate of 888000 hectares according to McKenzie et al 2020.

Calculated Stocks and Emissions Factors

This section of the report details whether data is available to estimate Tier I, Tier II, or Tier III value estimates for tidal marsh, mangrove, and seagrass ecosystems in Nigeria.

If data for the selected country is available in the Coastal Carbon Atlas, we have applied a Tier II emission factor based on a simple average of country specific data queried from the Atlas.

Country-specific soil cores from Nigeria have not yet been included in the Coastal Carbon Atlas. In this case, we have instead applied the IPCC Tier I estimated value. IPCC Tier I estimates for mangrove, marsh, and seagrass habitats are listed below.

Tier I Carbon Stocks: Global Values

IPCC Tier I: Global Carbon Stock Estimates
Habitat Mean Lower CI Upper CI
mangrove 386 351 424
marsh 255 254 297
seagrass 108 84 139

Tier II Carbon Stocks: Territory-Level Values

Tier II, or territory-level carbon stocks were estimated, when available, from soil core data currently housed in the Coastal Carbon Atlas.

Territory-Level Data Availability for Nigeria: The selected geography, Nigeria does not currently have available Tier II carbon stock estimates at a depth of 1 meter. Please refer to IPCC global values.

Tier III Carbon Stocks: Modeled Values

Tier III, or modeled carbon stocks were estimated, when available, from remote sensing data from Maxwell et al 2021 for mangrove habitats, and Sanderman et al 2018 for tidal marsh habitats. The following details whether estimated values are available for Nigeria, and any overlap with associated Tier I or Tier II values.

If there are no modeled carbon stock estimates associated with the selected country, please refer to Tier I and/or Tier II tables.

Modeled Data Availability for Nigeria: There are currently no Tier III values for Nigeria in the CCN Inventory Dashboard. Please refer to IPCC global values.

Visualizations

2. Emissions Factors

3. Activity Data

References

Bunting, Pete, Ake Rosenqvist, Richard M. Lucas, Lisa-Maria Rebelo, Lammert Hilarides, Nathan Thomas, Andy Hardy, Takuya Itoh, Masanobu Shimada, and C. Max Finlayson. 2018. “The Global Mangrove Watch—a New 2010 Global Baseline of Mangrove Extent.” Remote Sensing 10 (10): 1669. https://doi.org/10.3390/rs10101669.
McKenzie, Len J, Lina M Nordlund, Benjamin L Jones, Leanne C Cullen-Unsworth, Chris Roelfsema, and Richard K F Unsworth. 2020. “The Global Distribution of Seagrass Meadows.” Environmental Research Letters 15 (7): 074041. https://doi.org/10.1088/1748-9326/ab7d06.
Sanderman, Jonathan. 2017. “Global Mangrove Soil Carbon: Dataset and Spatial Maps.” Harvard Dataverse. https://doi.org/10.7910/dvn/ocyuit.
Society, National Geographic. 2000. “Coral World.”
Worthington, Thomas A., Mark Spalding, Emily Landis, Tania L. Maxwell, Alejandro Navarro, Lindsey S. Smart, and Nicholas J. Murray. 2024. “The Distribution of Global Tidal Marshes from Earth Observation Data.” Global Ecology and Biogeography 33 (8). https://doi.org/10.1111/geb.13852.